diff options
| author | Waldemar Brodkorb <wbx@openadk.org> | 2014-09-20 22:36:23 +0200 |
|---|---|---|
| committer | Waldemar Brodkorb <wbx@openadk.org> | 2014-09-22 20:35:40 +0200 |
| commit | 4c3023bc803012656cf45749960282351efc8020 (patch) | |
| tree | 979feef511fde3dbe564e5362e89a2e8b793909e /libpthread/nptl/sysdeps/xtensa/libc-tls.c | |
| parent | 51f9b66d2fee1c7c1088b548751ac64131220b6e (diff) | |
xtensa: add support for NPTL
Changes from:
https://github.com/foss-xtensa/uClibc/commits/xtensa_nptl
Author: Chris Zankel <chris@zankel.net>
Author: Baruch Siach <baruch@tkos.co.il>
Diffstat (limited to 'libpthread/nptl/sysdeps/xtensa/libc-tls.c')
| -rw-r--r-- | libpthread/nptl/sysdeps/xtensa/libc-tls.c | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/libpthread/nptl/sysdeps/xtensa/libc-tls.c b/libpthread/nptl/sysdeps/xtensa/libc-tls.c new file mode 100644 index 000000000..80494c56f --- /dev/null +++ b/libpthread/nptl/sysdeps/xtensa/libc-tls.c @@ -0,0 +1,36 @@ +/* Thread-local storage handling in the ELF dynamic linker. Xtensa version. + Copyright (C) 2005 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <http://www.gnu.org/licenses/>. */ + +#include <sysdeps/generic/libc-tls.c> +#include <dl-tls.h> + +#if defined(USE_TLS) && USE_TLS + +/* On Xtensa, linker optimizations are not required, so __tls_get_addr + can be called even in statically linked binaries. In this case module + must be always 1 and PT_TLS segment exist in the binary, otherwise it + would not link. */ + +void * +__tls_get_addr (tls_index *ti) +{ + dtv_t *dtv = THREAD_DTV (); + return (char *) dtv[1].pointer.val + ti->ti_offset; +} + +#endif |